Perhaps you should try some spelling variations:
pheromone compliant » pheromone component (Expand search), pheromone components (Expand search)
compliant control » compliance control (Expand search), compliance controle (Expand search), complexity control (Expand search)
using pitons » using pion (Expand search), using pivots (Expand search), using mertons (Expand search)
ring using » drying using (Expand search), aging using (Expand search), scoring using (Expand search)
codes » modes (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( codes pheromone compliant control program ) OR ( ring using pitons python programming ))~.